New Multifix 603 vs its competitors: how it performs under pressure. By: Charlenne Woodcock on 21st March 2025 Products B3 foam Multifix 603 Comparison Daniel tests the Multifix 603 over 3 other equivalents on the market to see how it expands, explaining the importance of the expansion rate and structure and which one is best. Watch to find out! #multifix #b3foam #carpentry Featured: Daniel Woodcock Head of Product & Innovation Related posts At Multifix we developed a solution to stop the belt/rafter hook supplied with the 2nd generation 1st fix guns from swinging. This will work with any of the other HiKOKI nailers that are supplied w... Watch 's story